Decorative front bumper of a vehicle



The FIG. 1 is a front and right side perspective view of a decorative front bumper of a vehicle showing my new design; and,

FIG. 2 is a front and side perspective view looking from the left thereof.

The rear view of the surface that faces the automobile when installed is omitted and is not part of the claimed design.

The automobile portions shown in broken lines are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a decorative front bumper of a vehicle, as shown and described. 